监控作业脑力疲劳综合评定方法研究  

Research on Comprehensive Assessment Method of Mental Fatigue in Monitoring Task

作　　者：王政[1] 李延军[1] 严曲[1] 王宏伟[1] 

机构地区：[1]中国航天员科研训练中心,北京100094

出　　处：《航天医学与医学工程》2010年第1期20-24,共5页Space Medicine & Medical Engineering

基　　金：中国载人航天工程基金资助

摘　　要：目的探讨眼动、心率变异性指标与监控作业脑力疲劳间的关系,寻找客观指标,构建脑力疲劳综合评定方法。方法20名受试者进行1 h模拟监控作业,利用眼动仪和Holter记录作业过程中的眼动和心电数据。以闪光融合频率和监控作业反应时为依据,将受试者分为疲劳组与不疲劳组,对作业前后各指标进行对比分析。结果作业后,主观疲劳感、眼睑闭合度、LF/CF上升,反应时延长,闪光融合频率、HF(AU)下降。结论脑力疲劳后,可利用心理学、眼睑闭合度、心率变异性等指标对监控作业脑力疲劳进行多层次综合定性、定量评定。Objective To study the relationship between eye movement,HRV indexes and mental fatigue,find feasible objective indexes and build the comprehensive method to evaluate mental fatigue.Methods When twenty subjects executed the simulated monitoring task for 60 min,pupil diameter and ECG data were recorded by eye tracker system and Holter.The subjects were divided into 2 groups（fatigued group/scarcely fatigued group） according CFF（critical flicker frequency） and reaction time（RT）.Based on comparison of various indexes between pre-and post-monitoring task,potent indexes were extracted to evaluate mental fatigue.Results After monitoring task,the change of fatigue feeling,Perclos,r-MSSD,PNN50,HF,LF and TP were significantly different in two groups.Conclusion It＇s suggested that psychology,Perclos and HRV indexes can be used to build the multilevel comprehensive method which can detect mental fatigue quantitatively and qualitatively.

关 键 词：脑力疲劳 监控作业 心率变异性 闪光融合频率 眼睑闭合度 

分 类 号：R857.1[医药卫生—航空、航天与航海医学]